Translucent Material with Passthrough

Hello everyone !

I'm trying to use translucent material on object with a OVR passthrough layer component on my VRPawn and setted in Underlay mode.

When my shader is opaque or masked, no problem but when it's an actor with a translucent material, I can just see them through other opaque objects behind. It seems relative to the fact that translucent material are not rendered in the Scene Depth pass.

Is it possible to manage this ? How can we achieve that ?

Thanks in advance for your help

Unreal 4.27.2 - Custom build from Oculus GitHub repo